This previous video explains the problems with the axle nut
Mazda wheel is not cooperating - YouTube
Soak down the axle nut (fifth time)
Check the impact socket - it does not appear to fit?
Use it anyway - and it WORKED! Why? Why this time?
Go over the socket set, and where I rented/borrowed it from
Mazda MX6 Day 075 Video 016 Sept 12 2014 - YouTube